wget --mirror --convert-links --adjust-extension --page-requisites --no-parent https://www.hackthissite.org/
mirror
- Makes the download act with recursion, seeking all the files in the site.no-parent
- Prevents from going "higher" in the website's directory structure.convert-links
- Reformats thehref
target within in-site links, allowing for the site to function as it would online.